Sony HCD-GRX3 Service Manual

Text of Sony HCD-GRX3 User Guide:

• Sony HCD-GRX3, HCD-GRX3/RX55/R300 5-2. BLOCK DIAGRAMS — DECK SECTION — — 15 — — 16 — HP901 PB HEAD TAPE B HRP901 REC/PB HEAD TAPE A R CHR CH R CH PLAY/REC CONTROL Q203,205 PLAY/REC CONTROL DRIVE Q207 AMS MUTE Q551,552 PLAY/REC CONTROL D201 L251 BIAS OSC BIAS OSC Q251 HE901 ERASE HEAD R CH 1 2 9 3 REC OUT PB OUT A/B 5 19 11 10 REC/PB EQ AMP IC201 Q251 D202 : FM : CD • Signal Path • RCH is omitted B CD SECTION TU L 11 9 10 ST IND TU MUTE DO CD L 12 CONTROL 3 2 1 CLK 14 DI 15 CE 13 SELECTOR IC301 CLK DI CE LINE AMP IC303 1 3 Q709 MUTE 1 10 4 POWER AMP IC401 SPEAKER RELAY DRIVE Q706 Q708 1 2 6 IC402 RL701 R CH SPEAKER PHONES JK302 JK303 SCOR SENS

• Sony HCD-GRX3, SECTION 6 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may have some differences from the original one. • Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. • The mechanical parts with no reference number in the exploded views are not supplied. • Hardware (# mark) list and accessories and packing materials are given in the last of this parts list. — 67 — When indicating parts by reference number, please include the board nam

• — 14 — SECTION 5 DIAGRAMS 5-1. CIRCUIT BOARDS LOCATION SW (C) board SW (D) board SW (B) board CD BUTTON board PANEL board VOLUME board FUSE board AMP board MAIN board MOTOR board MOTOR (6P) (S) board SW (A) board CD DECODER boar d DECK board

• — 4 — SECTION 1 GENERAL LOCATION OF PARTS AND CONTROLS 1 DISC 1 button 2 DISC 2 button 3 DISC 3 button 4 DISC SKIP button 5 § OPEN/CLOSE button 6 · (TAPE B) 7 · ∏ (CD) button 8 TUNER/BAND button 9 r REC button !º ∏ PAUSE button !¡ CD SYNC button !™ STEREO/MONO button !£ VOLUME !¢ REPEAT/MEMORY button !∞ ‚ + button !§ DECK B !¶ JOG DIAL !�

• Sony HCD-GRX3, — 5 — SECTION 2 DISASSEMBLY 2-1. UPPER COVER AND CD DOOR Note : Follow the disassembly procedure in the numerical order given. 2-2. FRONT PANEL 1 Three srews 2 Three screws 3 Seven screw s 4 Upper cover 5 Pull out the CD tray and remove the CD door with releasing craws into the directioin of arrow. 6 CD door claws 4 Flat type wire (CN09) 2 Connector (CN302) 1 Three screws 5 Front panel 3 Flat type wir e (CN09)

• Sony HCD-GRX3, Ref. No. Part No. Description Remarks — 78 — Ref. No. Part No. Description Remarks * 1-670-445-11 FUSE BOARD *********** 1-533-293-11 FUSE HOLDER < TERMINAL > AC1 1-535-416-00 TERMINAL AC2 1-535-416-00 TERMINAL P6 1-535-416-00 TERMINAL P7 1-535-416-00 TERMINAL < FUSE > ! F702 1-576-108-11 FUSE 4A/125V < RESISTOR > ! R001 1-202-727-00 CARBON 4.7M 5% 1/3W (US,CND) ************************************************************ * A-4405-480-A MAIN BOARD, COMPLETE (US,CND) ********************* * A-4405-482-A MAIN BOARD, COMPLETE (E,AUS,SP,MY,TW) ********************* * A-4405-483-A MAIN BOARD, COMPLETE (MX) ********************* < CAPACITOR > C101 1-161-379-0

• Sony HCD-GRX3, — 13 — IC03 VR02 VR01 R07 IC01 CN12 Focus Gain Focus Bias RF Level CD SECTION Note: 1. CD Block is basically constructed to operate without adjustment. Therefore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10MΩ impedance. 4. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks. 5. Adjust the focus bias adjustment when optical block is replaced. Focus Bias Adjustment RF Level Check Procedure : 1. Connect oscilloscope to test point TP (RF) on CD DECODER board. 2. Turned Power switch

• SAFETY CHECK-OUT After correcting the original service problem, perform the following safety checks before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE The AC leakage from any exposed metal part to earth Ground and from all ex

• Sony HCD-GRX3, HCD-GRX3/RX55/R300 — TUNER/CD SECTION — — 17 — — 18 — CE 19 12 5 3 4 2 24 1 PLL IC103 FM XO XI CLK DI DO CE CLK DO DI OPTICAL PICK-UP BLOCK APC Q01 38 +5V VC LD GND A C B E F FOCUS COIL F+ F T+ T TRACKING COIL 33 34 39 36 35 48 APC FOCUS PHASE COMPENSATION DECODER SERIAL/ PARALLEL CONVERTER FE AMP RF AMP IIL TTL TTL IIL COMAND VC TRACKING PHASE COMPENSATION LD PD E F PD1 PD2 6 24 23 20 19 22 21 31 25 SENS RFO FOK C OUT DATA XLT CLK XRST 13 FEO TAO IC03 T.T/TRAY MOTOR DRIVER CD RF/SERVO PROSSESOR IC01 (1/2) 4 5 T IN 3 2 1 VR PD PD 18 17 20 19 6 F IN 22 SL IN 13 T.T F IN F+ F T+ T SL+ SL SP+ SP M M MOTOR M102 SLED MOTOR M101 SPINDOL EFM DEMO. XRST CLV SERVO DIGI

• Sony HCD-GRX3, — 9 — Precaution 1. Clean the following parts with a denatured alcohol-moistened swab: record/playback head pinch rollers erase head rubber belts capstan idlers 2. Demagnetize the record/playback head with a head demagnetizer. 3. Do not use a magnetized screwdriver for the adjustments. 4. After the adjustments, apply suitable locking compound to the parts adjusted. 5. The adjustments should be performed with the rated power supply voltage unless otherwise noted. Torque Measurement SECTION 3 MECHANICAL ADJUSTMENTS Meter reading 40 to 70 g • cm (0.5

• Sony HCD-GRX3, Ref. No. Part No. Description Remarks — 79 — Ref. No. Part No. Description Remarks C341 1-126-960-11 ELECT 1uF 20% 50V C342 1-126-960-11 ELECT 1uF 20% 50V C343 1-126-963-11 ELECT 4.7uF 20% 50V C344 1-126-963-11 ELECT 4.7uF 20% 50V C345 1-137-353-11 FILM 0.047uF 5% 100V C346 1-137-353-11 FILM 0.047uF 5% 100V C347 1-162-303-11 CERAMIC 0.0033uF 30% 16V C348 1-162-303-11 CERAMIC 0.0033uF 30% 16V C349 1-162-294-31 CERAMIC 0.001uF 10% 50V C350 1-162-294-31 CERAMIC 0.001uF 10% 50V C351 1-137-354-11 FILM 0.1uF 5% 100V C352 1-137-354-11 FILM 0.1uF 5% 100V C353 1

• Sony HCD-GRX3, — 72 — Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 6-6. BASE UNIT SECTION (KSM-213BCM) 302 303 302 307 306 308 303 305 310 304 309 304 301 M101 M102 #6 #6 #6 #6 #18 not supplied 301 4-992-164-01 BASE, KSM MECHANICAL 302 4-992-165-01 DAMPER (GREEN) 303 4-992-166-01 DAMPER (RED) 304 4-992-167-01 SPRING, MECHANICAL BASE 305 2-626-907-01 GEAR (A) (S) 306 2-626-908-01 SHAFT, SLED 307 2-627-003-02 GEAR (B) ! 308 8-848-379-31 OPTICAL PICK-UP KSS-213B/S-N * 309 1-639-678-12 MOTOR (6P)(S) BOARD 310 1-783-740-11 WIRE

• Sony HCD-GRX3, Ref. No. Part No. Description Remarks — 83 — Ref. No. Part No. Description Remarks R626 1-247-847-11 CARBON 4.7K 5% 1/4W R627 1-247-847-11 CARBON 4.7K 5% 1/4W R628 1-247-847-11 CARBON 4.7K 5% 1/4W R629 1-247-847-11 CARBON 4.7K 5% 1/4W R630 1-247-847-11 CARBON 4.7K 5% 1/4W R631 1-247-847-11 CARBON 4.7K 5% 1/4W R632 1-247-847-11 CARBON 4.7K 5% 1/4W R633 1-247-721-11 CARBON 4.7K 5% 1/4W F R634 1-247-721-11 CARBON 4.7K 5% 1/4W F R635 1-247-721-11 CARBON 4.7K 5% 1/4W F R636 1-247-871-11 CARBON 47K 5% 1/4W R637 1-247-839-11 CARBON 2.2K 5% 1/4W R638 1-249-409-11 CARBON 220 5% 1/4W F R639 1-247-702-11 CARBON 150 5% 1

• Sony HCD-GRX3, 2 PAGE Former New 68 Ref. No. Part No. Description Remark MECHANICAL PARTS LIST Ref. No. Part No. Description Remark MECHANICAL PARTS LIST 52 4-210-588-01 DOOR (R), CASSETTE (EXCEPT R300) 52 4-211-425-01 DOOR (R), CASSETTE (R300) 54 4-210-572-01 HOLDER (R), CASSETTE (EXCEPT R300) 54 4-211-433-01 HOLDER (R), CASSETTE (R300) 56 4-210-587-01 DOOR (L), CASSETTE (EXCEPT R300) 56 4-211-424-01 DOOR (L), CASSETTE (R300) 58 4-210-571-01 HOLDER (L), CASSETTE (EXCEPT R300) 58 4-211-

• Sony HCD-GRX3, NOTE: • Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. • -XX, -X mean standardized parts, so they may have some difference from the original one. • Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. • CAPACITORS: uF: µF • RESISTORS All resistors are in ohms. METAL: metal-film resistor METAL OXIDE: Metal Oxide-film resistor F: nonflammable • COILS uH: µH • SEMICONDUCTORS In each case, u: µ, for example: uA...: µA... , uPA... , µPA... ,

• Sony HCD-GRX3, Ref. No. Part No. Description Remarks — 74 — Ref. No. Part No. Description Remarks CD BUTTON < TERMINAL > JK703 1-694-443-11 TERMINAL BOARD < TRANSISTOR > Q701 8-729-188-23 TRANSISTOR 2SD882-P Q702 8-729-188-23 TRANSISTOR 2SD882-P Q703 8-729-232-32 TRANSISTOR 2SA965 Q706 8-729-194-57 TRANSISTOR 2SC945-P Q707 8-729-194-57 TRANSISTOR 2SC945-P Q708 8-729-119-76 TRANSISTOR 2SA1175-HFE Q709 8-729-231-55 TRANSISTOR 2SC2878-AB Q710 8-729-231-55 TRANSISTOR 2SC2878-AB < RESISTOR > R705 1-249-438-11 CARBON 56K 5% 1/4W R706 1-249-

• Sony HCD-GRX3, HCD-GRX3/RX55/R300 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 1.1 2001.11 Ref.No.66 and 67 corrected (SPM-01040) 1.0 1998.3 New 1998.12 Correction-1 2000.8 Supplement-1

• Sony HCD-GRX3, CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Notes on chip component replacement • Never reuse a disconnected chip component. • Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing • Keep the temperature of soldering iron around 270˚C during repairing. • Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). • Be careful not to apply force on the conductor when soldering or unsoldering. Laser component in this product is capable of

• — 69 — 6-3. CASSETTE MECHANISM DECK SECTION Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 151 1-759-633-11 DECK, MECHANICAL 152 9-880-883-01 HOLDER HEAD ASSY 153 9-880-884-01 FRAME HEAD 154 9-880-885-01 SPRING AZIMUTH 155 9-880-886-01 ARM PINCH L ASSY 156 9-880-887-01 ARM PINCH R ASSY 157 9-880-889-01 COIL ASSY 158 9-880-890-01 PLUNGER 15

• Sony HCD-GRX3, Ref. No. Part No. Description Remarks — 80 — Ref. No. Part No. Description Remarks L106 1-412-507-11 INDUCTOR 47uH L107 1-412-507-11 INDUCTOR 47uH L109 1-412-503-11 INDUCTOR 22uH L113 1-412-503-11 INDUCTOR 22uH < TRANSISTOR > Q101 8-729-015-41 TRANSISTOR 2SC1675-T1 Q102 8-729-178-63 TRANSISTOR 2SC2786-K Q108 8-729-041-83 TRANSISTOR 2SK544E Q112 8-729-194-57 TRANSISTOR 2SC945-P Q113 8-729-194-57 TRANSISTOR 2SC945-P Q114 8-729-902-80 TRANSISTOR DTA114YS Q116 8-729-194-57 TRANSISTOR 2SC945-P Q117 8-729-194-57 TRANSISTOR 2SC945-P Q301 8-729-194-57 TRANSISTOR 2SC945-P Q302 8-729-194-57 TRANSISTOR 2SC945-P Q303 8-729-194-57 TRANSISTOR 2SC945-P Q304 8-729-194-57

• Sony HCD-GRX3, HCD-GRX3/RX — 19 — — 20 — — 21 — — 22 — — 23 — IC01 (CD DECORD BOARD) CXA1782BQ IC101 (MAIN BOARD) LA1186 IC301 (MAIN BOARD) LC75392 IC201 (MAIN BOARD) TA8189N IC02 (CD DECORD BOARD) TC9173P 5-3. IC BLOCK DIAGRAMS IC03 (CD DECORD BOARD) BA5941FP IC602 (PANEL BOARD) BU2092 + – LEVEL SHIFT + – + – 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 LEVEL SHIFT + – + – MUTE + – + – LEVEL SHIFT + – + – LEVEL SHIFT + – + – + – 15 1617 18 19 21 20 22 26 25 24 23 + – NC Vcc VccVcc VCC BIAS IN IN1B IN1A IN2B IN2A GND GND MUTE VCC OUT2A OUT2B OUT1A OUT1B IN4B IN4A IN3B IN3A OP OUT OP IN (–) OP IN (+) GND NC VCC OUT3A OUT3B OUT4A OUT4B DRIVER DRIVER GND

• — 11 — TUNER SECTION 0 dB=1µV AM Tuning Voltage Adjustment Procedure: 1. Set the reception frequency of the unit to 530 kHz. 2. Adjust L105 for 1.2 ± 0.05 V reading on the DC voltmeter. 3. Set the reception frequency of the unit to 1,710 kHz. 4. Confirm that the voltage reading on the DC voltmeter is within 8.0 ± 0.5 V. Adjustment Location: MAIN board (See page

• Sony HCD-GRX3, Ref. No. Part No. Description Remarks — 76 — Ref. No. Part No. Description Remarks R52 1-247-721-11 CARBON 4.7K 5% 1/4W F R53 1-249-411-11 CARBON 330 5% 1/4W R56 1-247-847-11 CARBON 4.7K 5% 1/4W R57 1-249-427-11 CARBON 6.8K 5% 1/4W F R58 1-249-442-11 CARBON 510 5% 1/4W R59 1-247-903-00 CARBON 1M 5% 1/4W R61 1-247-855-11 CARBON 10K 5% 1/4W R62 1-247-855-11 CARBON 10K 5% 1/4W R63 1-247-855-11 CARBON 10K 5% 1/4W R64 1-247-855-11 CARBON 10K 5% 1/4W R65 1-247-864-11 CARBON 24K 5% 1/4W R66 1-247-864-11 CARBON 24K 5% 1/4W R67 1-247-864-11 CARBON 24K 5% 1/4W R68 1-247-864-11 CARBON 24K 5% 1/4W R

• Sony HCD-GRX3, — 68 — Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 6-2. FRONT PANEL SECTION 51 4-210-586-01 WINDOW (R), CASSETTE 52 4-210-588-01 DOOR (R), CASSETTE 53 4-210-577-01 SPRING (R), CASSETTE 54 4-210-572-01 HOLDER (R), CASSETTE 55 4-210-585-01 WINDOW (L), CASSETTE 56 4-210-587-01 DOOR (L), CASSETTE 57 4-210-576-01 SPRING (L), CASSETTE 58 4-210-571-01 HOLDER (L), CASSETTE 59 4-992-154-01 RUBBER, FOOT 60 4-210-592-01 WINDOW, DISPLAY 61 4-210-581-01 HOLDER, CD BUTTON 62 4-962-708-01 EMBLEM (4-A), SONY 63 4-992-131-01 DAMPER (GRY), GEAR 64 4-210-553-01 BUTTON, POWER 65 4-210-554-

• HCD-GRX3/RX55/R300 US Model Canadian Model HCD-RX55 E Model HCD-GRX3/R300 Australian Model HCD-GRX3 SERVICE MANUAL CORRECTION-1 Correct your service manual as shown below. Subject : Correction of electrical parts. (ECN-TA803970) (ECN-TA803983) Sony Corporation Home A&V Products Company9-922-804-91 98L1643-1 Printed in Japan ©1998.12 Published by Quality Assurance Dept. (Shibaura)

• Sony HCD-GRX3, — 12 — FM Tuned Level Adjustment set Procedure: 1. Supply a 28 dB 98 MHz signal from the ANTENNA terminal. 2. Tune the set to 98 MHz. 3. Adjust SFR101 to the point (moment) when the TUNED indicator will change from going off to going on. Adjustment Location: MAIN board FM Tracking Adjustment Procedure: 1. Tune the set to 90 MHz. 2. Adjust L102 so that when the waveform on the oscilloscope is maximum, no noise appears. 3. Tune the set to 106 MHz. 4. Adjust CT101 so that when the waveform on th

• Sony HCD-GRX3, HCD-GRX3/RX55/R300 US Model Canadian Model HCD-RX55 E Model HCD-GRX3/R300 Australian Model HCD-GRX3 SERVICE MANUAL MINI Hi-Fi COMPONENT SYSTEM HCD-GRX3/RX55/R300 are the tuner, deck, CD and amplifier section in MHC-GRX3/ RX55/R300. SPECIFICATIONS Model Name Using Similar Mechanism HCD-G101 CD Mechanism Type CX3 Base Unit Type KSM-213BCM Optical Pick-up Type KSS-213B/S-N Model Name Using Similar Mechanism NEW CWB44RR10 CD SECTION TAPE DECK SECTION Tape Transpor Mechanism Type Sony Corporation Home Audio Company Published by Sony Engineering Corporation 9-922-804-12 2001K1600-1 © 2001.11 AUDIO POWER SPECIFICATI

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